James S. Bogard, Katherine L. Yuracko, Michael E. Murray, Richard A. Lowden and Norm L. Vaughn
Life‐cycle analysis (LCA) provides a general framework for assessing and summarizing all of the information important to a decision. LCA has been used to analyze the desirability…
Abstract
Life‐cycle analysis (LCA) provides a general framework for assessing and summarizing all of the information important to a decision. LCA has been used to analyze the desirability of replacing lead (Pb) with a composite of tungsten (W) and tin (Sn) in projectile slugs used in small arms ammunition at US Department of Energy (DOE) training facilities for security personnel. The analysis includes consideration of costs, performance, environmental and human health impacts, availability of raw materials, and stakeholder acceptance. Projectiles developed by researchers at Oak Ridge National Laboratory (ORNL) using a composite of tungsten and tin are shown to perform as well as, or better than, those fabricated using lead. A cost analysis shows that tungsten‐tin is less costly to use than lead, since, for the current number of rounds used annually, the higher tungsten‐tin purchase price is small compared with higher maintenance costs associated with lead. The tungsten‐tin composite presents a much smaller potential for adverse human health and environmental impacts than lead. Only a small fraction of the world’s tungsten production occurs in the USA, however, and market‐economy countries account for only around 15 per cent of world tungsten production. Concludes that stakeholders would prefer tungsten‐tin on the basis of total cost, performance, reduced environmental impact and lower human toxicity. However, lead is preferable on the basis of material availability. Life cycle analysis clearly shows that advantages outweigh disadvantages in replacing lead with tungsten‐tin in small‐caliber projectiles at DOE training facilities. Concerns about the availability of raw tungsten are mitigated by the ease of converting back to lead (if necessary) and the recyclability of tungsten‐tin rounds.
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Kristen D. Beach and Samantha A. Gesel
Assessment is at the core of high-quality education. When educators purposefully engage in assessment, the learning experiences and outcomes of all students, especially of…
Abstract
Assessment is at the core of high-quality education. When educators purposefully engage in assessment, the learning experiences and outcomes of all students, especially of students diagnosed with specific learning disabilities (SLDs), are improved. In this chapter, we discuss assessment as unfolding within a framework that includes purposes, processes, and tools of assessment existing in the educational context. We open the chapter with an explanation of this framework. Then, in Part 1, we review the construct of SLD and detail how assessment is used within prominent approaches to diagnosis. In Part 2, we discuss how assessment is used to inform instruction before and after diagnosis. We ground our discussion in a vignette that follows Tess, a student who, at the beginning of third grade, has undiagnosed SLD in the area of reading. We show how educators at Tess's school collaborate in the purposeful use of assessment to inform instruction before and after Tess's diagnosis of SLD, highlighting traditional and innovative assessment techniques along the way.
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Nancy Molfenter and Cheryl Hanley-Maxwell
This chapter provides a framework for ethical decision making related to inclusive educational opportunities for secondary students with intellectual and developmental…
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This chapter provides a framework for ethical decision making related to inclusive educational opportunities for secondary students with intellectual and developmental disabilities (I/DD) based on policies and practices in the United States. Relevant research findings are utilized to explore ethical principles involved in educational decision making for secondary students with I/DD, with discussions on how these are intertwined with U.S. policy. I/DD and inclusion, as described in the research literature and U.S. policy, are defined and the current status of inclusive practices are described. Next, an exploration of the rationale, as supported by empirical evidence, for educating students at the secondary level with I/DD, primarily with their peers who do not have identified disabilities, is shared along with the counter-narrative. Connections of inclusion to post-school outcomes and the lived educational experiences of students with and without disabilities and educators are considered, including ethical dilemmas and conflicts. Finally, factors influencing the application of inclusionary practices are provided.
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Certain elements of Hayek’s work are prominent precursors to the modern field of complex adaptive systems, including his ideas on spontaneous order, his focus on market processes…
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Certain elements of Hayek’s work are prominent precursors to the modern field of complex adaptive systems, including his ideas on spontaneous order, his focus on market processes, his contrast between designing and gardening, and his own framing of complex systems. Conceptually, he was well ahead of his time, prescient in his formulation of novel ways to think about economies and societies. Technically, the fact that he did not mathematically formalize most of the notions he developed makes his insights hard to incorporate unambiguously into models. However, because so much of his work is divorced from the simplistic models proffered by early mathematical economics, it stands as fertile ground for complex systems researchers today. I suggest that Austrian economists can create a progressive research program by building models of these Hayekian ideas, and thereby gain traction within the economics profession. Instead of mathematical models the suite of techniques and tools known as agent-based computing seems particularly well-suited to addressing traditional Austrian topics like money, business cycles, coordination, market processes, and so on, while staying faithful to the methodological individualism and bottom-up perspective that underpin the entire school of thought.
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The Least Restrictive Environment (LRE) requirements of the Individuals with Disabilities Education Act address factors to consider in educating students with and without…
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The Least Restrictive Environment (LRE) requirements of the Individuals with Disabilities Education Act address factors to consider in educating students with and without disabilities together to the maximum extent appropriate. This chapter is designed to examine the origins and evolving interpretations of the LRE concept in special education policy and practice. Discussion traces the evolution of the concept as a legal principle, and reviews its application to educational strategies for students with learning and behavioral disabilities in contemporary schools. In conclusion, the future of the LRE concept is addressed in light of competing policies promoting presumptive inclusive education, and publicly funded school choice programs promoting greater involvement of parents in choosing where their children with and without disabilities should be educated.
Shanna E. Hirsch, Melissa K. Driver, Michelle Hinzman-Ferris and Allison Bruhn
Identifying students for intensive intervention (also referred to as Tier 3 supports) is most effective when implemented within a tiered system of support. Effective tiered…
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Identifying students for intensive intervention (also referred to as Tier 3 supports) is most effective when implemented within a tiered system of support. Effective tiered systems include both academic and behavioral supports for identifying and serving students with varied needs. In this chapter, we review existing research, discuss current practice, and offer guidance for identifying students with intensive academic and/or behavioral needs.
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Ellen Ernst Kossek, Brenda A. Lautsch, Matthew B. Perrigino, Jeffrey H. Greenhaus and Tarani J. Merriweather
Work-life flexibility policies (e.g., flextime, telework, part-time, right-to-disconnect, and leaves) are increasingly important to employers as productivity and well-being…
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Work-life flexibility policies (e.g., flextime, telework, part-time, right-to-disconnect, and leaves) are increasingly important to employers as productivity and well-being strategies. However, policies have not lived up to their potential. In this chapter, the authors argue for increased research attention to implementation and work-life intersectionality considerations influencing effectiveness. Drawing on a typology that conceptualizes flexibility policies as offering employees control across five dimensions of the work role boundary (temporal, spatial, size, permeability, and continuity), the authors develop a model identifying the multilevel moderators and mechanisms of boundary control shaping relationships between using flexibility and work and home performance. Next, the authors review this model with an intersectional lens. The authors direct scholars’ attention to growing workforce diversity and increased variation in flexibility policy experiences, particularly for individuals with higher work-life intersectionality, which is defined as having multiple intersecting identities (e.g., gender, caregiving, and race), that are stigmatized, and link to having less access to and/or benefits from societal resources to support managing the work-life interface in a social context. Such an intersectional focus would address the important need to shift work-life and flexibility research from variable to person-centered approaches. The authors identify six research considerations on work-life intersectionality in order to illuminate how traditionally assumed work-life relationships need to be revisited to address growing variation in: access, needs, and preferences for work-life flexibility; work and nonwork experiences; and benefits from using flexibility policies. The authors hope that this chapter will spur a conversation on how the work-life interface and flexibility policy processes and outcomes may increasingly differ for individuals with higher work-life intersectionality compared to those with lower work-life intersectionality in the context of organizational and social systems that may perpetuate growing work-life and job inequality.
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Christy R. Austin and Sharon Vaughn
A substantial number of students read significantly below grade level, and students with disabilities perform far below their non-disabled peers. Reading achievement data indicate…
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A substantial number of students read significantly below grade level, and students with disabilities perform far below their non-disabled peers. Reading achievement data indicate that many students with and at-risk for reading disabilities require more intensive reading interventions. This chapter utilizes the theoretical model of the Simple View of Reading to describe the benefit of early reading instruction, targeting both word reading and word meaning. In addition, evidence is presented supporting the use of word meaning instruction to improve accurate and efficient word reading for students who have failed to respond to explicit decoding instruction.
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Joseph Calvin Gagnon and Brian R. Barber
Alternative education settings (AES; i.e., self-contained alternative schools, therapeutic day treatment and residential schools, and juvenile corrections schools) serve youth…
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Alternative education settings (AES; i.e., self-contained alternative schools, therapeutic day treatment and residential schools, and juvenile corrections schools) serve youth with complicated and often serious academic and behavioral needs. The use of evidence-based practices (EBPs) and practices with Best Available Evidence are necessary to increase the likelihood of long-term success for these youth. In this chapter, we define three primary categories of AES and review what we know about the characteristics of youth in these schools. Next, we discuss the current emphasis on identifying and implementing EBPs with regard to both academic interventions (i.e., reading and mathematics) and interventions addressing student behavior. In particular, we consider implementation in AES, where there are often high percentages of youth requiring special education services and who have a significant need for EBPs to succeed academically, behaviorally, and in their transition to adulthood. We focus our discussion on: (a) examining approaches to identifying EBPs; (b) providing a brief review of EBPs and Best Available Evidence in the areas of mathematics, reading, and interventions addressing student behavior for youth in AES; (c) delineating key implementation challenges in AES; and (d) providing recommendations for how to facilitate the use of EBPs in AES.
In this paper, I explore what shapes the identities of digital nomads (DNs), a class of remote workers who travel and work concurrently. Through extensive fieldwork and interviews…
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In this paper, I explore what shapes the identities of digital nomads (DNs), a class of remote workers who travel and work concurrently. Through extensive fieldwork and interviews with 50 digital nomads conducted in seven coworking hostels in Mexico in 2022, I construct a theory of DN identity. I base this upon the frequent transformations they undergo in their Circumstances, which regularly change their worker identity.
DNs relinquish traditional social determinants of identity, such as nationality and religion. They define their personal identities by their passions and interests, which are influenced by the people they meet. DNs exist in inherently transitive social spaces and, without rigid social roles to fulfil, they represent themselves authentically. They form close relationships with other long-term travellers to combat loneliness and homesickness. Digital nomads define their worker identities around their location independence. This study shows that DNs value their nomadic lifestyle above promotions and financial gain. They define themselves by productivity and professionalism to ensure the sustainability of their lifestyle. Furthermore, digital nomad coworking hubs serve focused, individual work, leaving workplace politics and strict ‘office image’ norms behind. Without fixed social and professional roles to play, digital nomads define themselves personally according to their ever-evolving passions and the sustainability of their nomadic life. Based on these findings, I present a cyclical framework for DN identity evolution which demonstrates how relational, logistical, and socio-personal flux evolves DN’s worker identities.